3/8" NPT Female to 1/4" NPT Male Brass Pipe Adaptor/Adapter Straight Reducer/Reducing Coupling Male to Female

Only on receipt did I discover the size was incorrect. It appears the NPT standard relates to the INTERNAL aperture of the pipe! Still don't have a connector to use!

Amazon is the way to buy plumbing fittings, the shipping is a lot less than the gas to drive to Home Depot. After a couple trips to True Value and Home Depot to get this fitting (hooking up a pneumatic hose reel to compressor) which neither had in stock, I ordered it from Amazon. It arrived, fit, and I could move on to the "honey do" list without having to spend half a day finding one freaking fitting. I'll never try to buy specific/special plumbing fittings at a store from now on.

It works with the other project parts just fine, no leaks.

This seemed to be a solution for using a monopod with a 3/8" screw end with a camera 1/4" female connection but it was not to be. The folks are very helpful and answer email promptly but in the end I had to trash it -- the cost of returning is more than the item cost.

Not 3/8 it was 1/4 when I got it

I should of bought more. Sometimes it's nice to drop down to 1/4'' line for small project They were clean with no oily film and properly deburred.

Just what I needed to run airlines through our shop

Just what I needed. Sealed well, no leaks.